Rocks

Review game

1) Describe 2 pathways a sedimentary rock can take to become an igneous rock

1) Melting- cooling

2) Heat/pressure-metamorphic rock-melting-cooling

2) What step in the rock cycle helps metamorphic rock to form?

Heat & Pressure

3) Describe 2 pathways a igneous rock can take to become a metamorphic rock

a) heat/pressure- metamorphic rock

b) Erosion- deposition- compaction- sedimentary rock- heat/pressure- metamorphic rock

4) What step helps turn any kind of rock into a sedimentary rock?

Erosion

5) A sedimentary rock made up of rounded fragments of other rocks is called

A Clastic rock

6) What step in the rock cycle would be required to change gneiss into sandstone?

Erosion

7) A series of processes on Earth's surface and interior that slowly changes rocks from one kind to another is called

Rock cycle

8) The texture of a metamorphic rock that has grains arranged in parallel layers is described as

foliated

9) Where does the heat that changes a rock into metamorphic rock come from

mantle

10)Rocks are changed into metamorphic rock through what ways?

Heat & pressure

11)Rocks formed by things that were once alive are called what?

Organic rocks

12)How are clastic sedimentary rocks formed?

When sediments are compacted, and water reacts with the chemicals in the minerals making them stick together. (cementation)

13)Describe the process of cementation as it applies to sedimentary rocks.

water reacts with the chemicals in the minerals making them stick together.

14)Describe deposition.

When sediments build up on top of each other in one place

15)Describe erosion.

Process where rock is broken down into smaller pieces and transported to a different location

16)Some igneous rocks have a porphyritic texture. Describe a porphyritic texture.

Large grains scattered on a background of much smaller crystals

17)What is the most abundant intrusive rock?

Granite

18)What is the most abundant extrusive rock

Basalt

19)Describe a coarse grained rock.

Large easy to see grains

20)How do geologists determine a rock’s texture?

Grain size, shape, and pattern

21) A metamorphic rock that has grains arranged in bands is said to be what? Foliated

22)Give 2 examples of a clastic rock.

Shale, conglomerate, sandstone, breccia

23) Sandstone changing to quartzite is an example of what process?

Metamorphism (heat/pressure)

24) During the rock cycle, forces inside Earth can push rock down toward the heat of the mantle, and produce what type of rock?

Metamorphic